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Poster: Tom Gally Date: Dec 15, 2012 4:38pm
Forum: texts Subject: Upside-down scans of Japanese books

A couple of nice old Japanese books recently added to the Archive have all of their pages upside down in both the Read Online versions and the downloadable PDFs:

http://archive.org/details/irohabikimoncho03tana

http://archive.org/details/leathersofoldja00mats

Is there any way to fix this?

This post was modified by Tom Gally on 2012-12-16 00:38:14

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Poster: aibek Date: Dec 17, 2012 7:31am
Forum: texts Subject: Re: Upside-down scans of Japanese books

Probably something wrong with IA programs. The corresponding scandata.xml files correctly record (I think!) that the pages are upside down, but the information is not being used by the processor.

(I earlier imagined that the person doing the scan probably made the mistake, but that is impossible, for the second book has English text.)

irohabikimoncho03tana:
<globalHandedness>
<page-progression>rl</page-progression>
<scanned-right-to-left>false</scanned-right-to-left>
<scanned-upside-down>true</scanned-upside-down> <-- this line.
<needs-rectification>false</needs-rectification>
</globalHandedness>


leathersofoldja00mats:
<globalHandedness>
<page-progression>lr</page-progression>
<scanned-right-to-left>false</scanned-right-to-left>
<scanned-upside-down>true</scanned-upside-down>
<needs-rectification>true</needs-rectification>
</globalHandedness>


And other mistakes seem to be present too. For the first file, the image crop and skew information -- which is present in the scandata.xml -- is not being used. (So the images have a thick black scanner background around them. And there is a slight skew.)

For the second file, page progression in Read Online is lr (as it should be), but the “Selected Metadata” at the bottom of the /details/ page says it is rl.

Mr Gally: Should the first file too have lr page progression?

This post was modified by aibek on 2012-12-17 15:31:02

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Poster: Tom Gally Date: Dec 18, 2012 4:03pm
Forum: texts Subject: Re: Upside-down scans of Japanese books

Many thanks for the reply.

> Should the first file too have lr page progression?

If "lr" means that the pages are turned from left to right (that is, the opposite of books in English), then yes. (Japanese books with vertical writing nearly always have pages that turn in that direction.)

The first file was unavailable for viewing yesterday, presumably because it was being fixed. I see now that part of it is right-side up in the online viewer while part is still upside down. In the following two-page spread, the left-hand page is right-side up and the right-hand page is upside down. All subsequent pages in each direction seem to have the same orientation.

http://archive.org/stream/irohabikimoncho03tana#page/n16/mode/2up

The second file, "Leathers of old Japan," is still upside down.

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Poster: aibek Date: Dec 18, 2012 6:41pm
Forum: texts Subject: Re: Upside-down scans of Japanese books

Hello

‘lr’ page progression means that the left page comes before the right page in the pagination. English has lr page progression, Arabic has rl page progression.

So, if I understand you correctly, you are saying that Japanese books with vertical characters have rl page progression. That is, the page progression of the book as recorded by IA is fine.

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Poster: japanharold Date: Feb 2, 2013 1:35pm
Forum: texts Subject: Re: Upside-down scans of Japanese books

I've looked at these books on my iPad and don't see a problem. The books read from right to left as they naturally would and aren't upside down on my device. The books seem to be in good condition considering their age, and, in my opinion, the scans were done very well. Perhaps they have been changed since you posted in December?

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Poster: aibek Date: Feb 2, 2013 7:37pm
Forum: texts Subject: Re: Upside-down scans of Japanese books

yes, they were changed after Mr Gally notified of the error.